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Component Lab / pricing-conversion / pricing-calculators-subscription-upgrade-planner

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Subscription Upgrade Planner · Pricing calculators

Previews proration, limits, timing, and retained features before plan change for usage, seats, storage, bundles, and ROI; it is designed to turn commercial assumptions into transparent, verifiable estimates. Plan and date selection update an itemized invoice preview and capability diff. The pricing calculators variant is specialized for currency formatting and animation must remain separate from math. Users can turn commercial assumptions into transparent, verifiable estimates while understanding the current state, available choices, and resulting consequence.

Lab tested Responsive Dark mode Interactive
Version
1.0.0
Updated
2026-08-08
Dependencies
Zero
Preparing the interactive workbench…

Implementation field notes

Use subscription upgrade planner · pricing calculators confidently.

The preview and source are only the starting point. Use these notes to decide where the component fits, preserve its accessibility contract, and verify the adapted result.

Good fit for

  • Pricing calculators
  • Pricing calculators
  • Users can turn commercial assumptions into transparent, verifiable estimates while understanding the current state, available choices, and resulting consequence.

This pricing calculators pattern works best when its purpose is clear in the surrounding page hierarchy.

Accessibility contract

  • The primary purpose and current state remain available as text and do not depend on color, motion, pointer position, or visual geometry.
  • Every interaction has keyboard equivalence, visible focus, predictable Escape behavior where applicable, and appropriately scoped status announcements.
  • Reduced-motion, 200% zoom, long-content, narrow-container, and forced-color behavior are part of the implementation acceptance criteria.

Integration plan

  1. Copy the standalone HTML and scoped CSS into an isolated page.
  2. Adapt primary accent, secondary accent, canvas surface, primary text through the Inspector.
  3. Connect the defensive JavaScript, then test every control with a keyboard.
  4. Review the result at 375, 768, 1024, and 1440 pixels before shipping.

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